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ARM Ransomware Attack

arm.comData extortion

d1rGroup

United KingdomCountry

Jul 12, 2026Discovered

Data has been published on the ransomware group's leak site.

Overview

View group profile

Domain

arm.com

Industry

Healthcare

Country

United Kingdom

Discovered

3 months ago

Attack date

Jul 13, 2026

Confidence

70%

Severity

Critical

Status

Data Leaked

Threat group

d1r

Total victims

First seen

Jul 2026

Last seen

Sep 2026

Group status

active

Sophistication

Impact score

Threat level

3.9/10

Aggressiveness0.8/10

Lethality3.3/10

Criticality8.3/10

Status breakdown

Data Leaked

this victim

33.3%2

Claimed66.7%4

Targeted sectors

Education Government & Defense Healthcare Hospitality Manufacturing Technology Transportation

Victim's position within group

Industry

Healthcare

Known target sector

Country

United Kingdom

Frequently targeted country

Other victims

View all (6)

Same group · d1r

Bosch
Germany
Data Leaked
ARM
United Kingdom
Data Leaked
Synopsys
United States
Claimed

Group activity

Monthly attacks · d1r

total · avg 3/mo